Essays about: "silt slope"

Showing result 1 - 5 of 7 essays containing the words silt slope.

  1. 1. Water quality and organic matter linkages in waters draining arable fields

    University essay from SLU/Dept. of Soil and Environment

    Author : Adam Eriksson; [2021]
    Keywords : Natural organic matter NOM ; particular organic matter POM ; dissolved organic matter DOM ; allochthonous; autochthonous; Florescence index FIX ; Freshness index BIX ; Humification index HIX ; SUVA 254; E2:E3; Spectral Slope; Observation fields; microbial matter; humic matter; unfiltered samples UF ; filtered samples F45 ;

    Abstract : This study investigated leaching of natural organic matter (NOM) in twelve Swedish arable fields with regards to the quality of dissolved organic matter (DOM) and particulate organic matter (POM), using Absorbance (UV-Vis) and fluorescence spectrometry (EEM). DOM is defined as organic matter (OM) 0.45 μm. READ MORE

  3. 2. Effect of Environmental Factors on Pore Water Pressure in River Bank Sediments, Sollefteå, Sweden

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Hanna Fritzson; [2017]
    Keywords : negative pore water pressures; matrix suction; silt slope; slope stability; pore water pressure variations; negativa porvattentryck; siltslänt; släntstabilitet; porvattentrycksvariationer;

    Abstract : Pore water pressure in a silt slope in Sollefteå, Sweden, was measured from 2009-2016. The results from2009-2012 were presented and evaluated in a publication by Westerberg et al. (2014) and this report is an extension of that project.In a silt slope the pore water pressures are generally negative, contributing to the stability of theslope. READ MORE

  4. 3. Geochemistry of stream plants and its statistical relations to soil- and bedrock geology, slope directions and till geochemistry : a GIS-analysis of small catchments in northern Sweden

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Harry Eriksson; [2017]
    Keywords : Biogeochemistry; GIS; Physical Geography and Ecosystem analysis; Geographical Information Systems; Geochemistry; Catchments; Drainage areas; Earth and Environmental Sciences;

    Abstract : Subaquatic mosses and stream plants have been recognized as suitable sample media for detection of geochemical variations in their surrounding environments. These plants were originally used in search for mineral deposits but later on also for detection of environmental pollution. READ MORE

  5. 4. Slope processes and strength of material in silt rich ravines in Säterdalen, Sweden

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Pontus Westrin; Nils Melin; [2015]
    Keywords : Ravine; Silt Ravine; Silt; Cohesion; Shear ring; Shear stress; Angle of repose; LIDAR; Stress; Strength of material; Säterdalen; Raviner; Dalarna; Jord; Silt; Siltravin; Hållfasthet; Kohesion; Lidar;

    Abstract : Slope processes are important to understand if we are to protect fragile environments. Every year slope development in weak soils put nearby infrastructure in risk zones of sliding and ravine erosion takes away field areal from farmers as they grow even larger. READ MORE

  6. 5. Submarine slope instability as a cause of contaminated sediment dispersal in Ångermanälven, Sweden

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Hannes Berg Wiklund; [2015]
    Keywords : Submarine landslides; contaminated sediments; weak layers; Ångermanälven; Undervattenskred; förorenade sediment; svaga lager; Ångermanälven;

    Abstract : This study aims at providing results for the analysis of the stratigraphy underlying contaminated sediments in Ångermanälven. The contaminated sediments, containing heavy metals and persistent organic pollutants, are derived from wastewater discharged into Ångermanälven from nearby paper and pulp industries. READ MORE